Fuel-oil burner.



PATENTED JUNE ad, 1903i. T. E. FLAHERTY. FUEL OIL BURNER. APPLIUATION rILnfi 83M. 26, 1902.

H0 MODEL.

nuvko WASNINGTON, 0 c.

UNITED STATES Patented June 30, 1903.

PATENT OFFICE.

THOMAS E. FLAHERTY, OF ST. LOUIS, MISSOURI, ASSIGNOR TO AMERICAN FUEL OIL BURNER MANUFACTURING COMPANY, OF ST. LOUIS, MISSOURI,

A CORPORATION OF MISSOURI.

FUEL-OIL BURNER.

SPECIFICATION forming part of Letters Patent No. 732,181, dated June 30, 1903. Application filed September 26,1902. Serial No. 124,923. (No model.)

To all whom it may concern: I

Be it known that I, THOMAS E. FLAHERTY, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Fuel-Oil Burners, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had IO to the accompanying drawings, forming part of this specification, in which- Figure 1 is a top plan view, a portion of the deflector or cover being broken away and the fire-pot of the stove being indicated in dotted 5 lines. Fig. 2 is a central sectional elevation,

and Fig. 3 is a bottom plan view.

My invention relates to fuel-oil burners, and is particularly designed forburning crude petroleum and the like, although it is in no wise limited to such use.

Among the objects of my invention are to provide a structure which can be readily applied to stoves of the usual type-such, for example, as heating-stoves intended to burn z 5 wood or coal-to provide an efficient feed, to

provide an efficient supply of air, and to provide means for regulating the flame.

To these ends and also to improve generally upon devices of the character indicated my invention consists in the various matters hereinafter described and claimed.

Referring now more particularly to the drawings, A represents the fire-pot of a stove, said fire-pot being here shown as circular in 3 5 cross-section, and a indicates an annularsupporting-flange which is formed upon or connected to the inner wall of said fire-pot. The present burner fits within the said fire-pot and rests upon the said flange, this flange 40 serving not only to support the burner, but

also to close the space between the periphery of the same and the wall of the fire-pot, whereby air admitted to the stove beneath the burner is compelled to pass through the here-- 4 5 inafter-mentioned air-passages of said burner.

The body portion of the burner is preferably made as a single casting and comprises an annular bottom plate 1, from the sides of which rise inner and outer annular walls 2 and 3, respectively, while an intermediate annular wall 4 rises from the bottom plate between the walls 2. and 3, the said inner and intermediate walls and the bottom plate forming a circular trough for receiving the oil. The portion 5 of the bottom wall between the intermediate wall 4 and the outer Wall 3 is perforated, as shown at 6, so that an air channel or passage 7 is provided between the said walls 3 and 4. Spider-arms 8 extend from a central stock 9, said stock being provided with a rectangular opening for a supporting-post 10, by which the cover or deflector 11 is carried, and this stock is extended upon one side, as shown M12, and is slotted and provided with ears or lugs 13, in which is journaled a shaft 14,a pinion 15 being fastened to said shaft to rotate therewith and located between the said lugs. The central space 16, bounded by the inner wall 2, forms a central air-passage. Upon the ends of the spider-arms adjacent the inner wall 2 are formed bosses 17, which are provided with vertical oil-channels 18, said channels opening upon the bottom face of the bosses, and downwardly and outwardly extending channels 19 open upon the inner face of the inner wall 2and lead into the oiltrough, the delivery ends of said channels being above the bottom 1. Supply-pipes 20 are connected to the said bosses and enter the lower sides of the same, said supply-pipes communicating directly with the channels 18. By reason of this construction a convenient and simple means is afforded for the attachment ofthe supply-pipes, and the oil empties into the trough at a point above the bottom of the latter, whereby any sediment settling in the trough is prevented from entering the supply-pipes or supply-passages. Furthermore, no projections occur, along theinner surfaces of the Wallsof the trough, and the said trough can thus be readily cleaned. Supported upon the bottom of the burner is a slide-ring 21, which is provided with openings 22, adapted to register with the openings 6 of the bottom plate of the burner when the 95 ring is in one position, and intermediate said openings 22 are solid portions 23, which are adapted to cover the said openings 6 when the slide is in another position, all as will be readily understood,the draft through the too passages 7 being controlled by the ring-slide. Manifestly this slide can be supported upon the burner in many ways; but I prefer to support the same as shown in the drawings. As here illustrated, the bottom wall of the burner .is provided with a downwardly-extending annular rib 24, and the slide-ring has an inner portion 25, whose upper surface is below the upper surface of the main portion of the said ring, whereby there is produced an annular vertical wall 26 upon the said ring, which fits about the said annular rib 24, and thus holds the slide-ring against lateral displacement. Headed studs 27 extend downwardly from the said rib 24, and the slide-ring is provided with elongated slots 28, which are enlarged at one end, as shown at 29. Thus to apply the ring to the body portion-of the burner it is only necessary to turn the same so that the enlarged portions 29 of the slots register with the studs 27, then press the ring against the body portion of the burner to cause the said studs to pass through the said enlarged portions 29, and then give the ring a slight turn to carry the said enlarged portions out of vertical alinement with the studs and to cause the studs to lie in the main or contracted slot portions 28, the heads of said studs being wider than the said slots, and thus serving to hold the ring in position. The ring is provided with two projections 30, and after said ring is positioned as just indicated a stopfinger 31 is fastened upon the bottom of the body portion of'the burner and extends into the space between the said projections 30, the parts being so related to each other that the stop-finger and projections 30 prevent the ring being turned into such position that the enlarged slot portions 29 register with the lugs 27, while when one projection 30is in engagement with the said stop-finger the openings (5 are fully uncovered, and when the other projection 30 engages the said finger the openings 6 are fully closed.

The supporting-post 10 is vertically slidable through the before-mentioned opening in the stock 9 and is provided upon one side with a rack 32, whose teeth meshwith the teeth of the pinion 15, whereby said supportingpost can be raised and lowered by rotation of the shaft 14, this shaft being provided with a crank-handle or other convenient portion accessible to the operator. Near the upper portion of the post is a supporting-head 33, the end of the post above said head being preferably reduced and rounded, as shown at 34. The deflector or cover 11 fits upon the said post, being provided with a recess in which the head 33 is received and having an opening through which the end 34 of the post projects. If desired,the deflector can be fastened in position by means of a pin 35, extending through the end of the post and bearing upon the said deflector or cover. Preferably the supporting-post is held in its adjusted positions by means of a plate-spring 36, fastened to the stock 9 and bearing upon one side of 732,:isi

the post,whereby said post is frictionally held between the spring and some suitable relatively fixed member, such as the pinion.

In operation when it is desired to start the burner the deflector or top is raised, the draftopenings 6 are closed, and oil is admitted to the trough, after which the oil is ignited in any convenient manner. A satisfactory means of doing this is by using a torch comprising wire, with a piece of asbestos on its end. The asbestos being soaked in oil and lighted it is inserted by the wire through the space between the upper edge of the body portion of the burner and the deflector, thus communicating the flame to the oil in the trough. The air rising through the opening 16 is deflected upon the oil by means of the top 11, and the heavy gases are ignited and forced toward the flame-outlet between the deflector and the body portion of the burner. After the oil has become fully ignited throughout the trough the slide-ring is moved to uncover the openings 6 to a desired amount,- whereupon more air will be supplied to the flame. The deflector or cover 11 is of greater diameter than the body portion of the burner and is of such size that the ring of flame is directed against the wall of the stove, thus intensely heating the same. The flame-opening canbe adjusted and the flame thus regulated by means of the cover 11, and should it be desired to extinguish the flame it is only" necessary to lower the cover until it rests upon the upper edges of the side walls of the trough, whereupon air is out 03 from the oil in said trough and the flame quickly dies.

It will be noted that the deflector 11 is centrally supported and that the flame passes outwardly from the trough around the periphery of said deflector. Thus the supporting member for the deflector is not subjected to the flame, and therefore does not become covered with soot or otherwise have its efficiency impaired. Furthermore, the burner has an unbroken flame-opening extending entirely about the same,whereby the greatest possible area of flame is secured. The deflector or cover can be readily removed from the supporting-post and tilted back in the fire pot for the purpose of afl'ording convenient access to the oil-trough and to the under or inner side of the deflector. Substantially one-half of the bottom portion of the space between the outer wall 3 and the intermediate wall 4 is closed by the portions of the bottom wall between the perforations or openings 6; but the space between the upper edges of the said walls 3 and 4 is only half as great as the space between their lower edges. Therefore when the slide -ring is turned to fully uncover the openings 6 the exit opening from the air-passage 7 is no greater than is the combined area of the inlet-openings to said passage, whereby the air entering the said passage 7 is compelled to discharge from all points of the outlet-opening and an even flame is provided about the entire burner, all dead-spaces due to lack of air at any particular point being avoided.

I am aware that many minor changes in the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described Without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an oil-burner or the like, an open oilreceptacle formed about a central draft-passage, a draft-passage at the periphery of said receptacle communicating with the space above said receptacle and opening to atmosphereboth above and below said oil-receptacle, and a vertically-adjustable cover extending over said receptacle and central draft-passage and having movement to enable it to seat upon substantially the whole length of the outer wall of said receptacle to thus close communication between said receptacle and said peripheral draft-passage, and means for supporting said cover in adjusted positions; substantially as described.

2. In an oil-burner or the like, inner, intermediate and outer Walls, a bottom connecting said inner and intermediate walls to produce an oil-trough, there being an air-passage inciosed by said inner wall and an airpassage produced between said. intermediate and outer walls, a vertically-adj ustable cover extending over the space inclosed by said outer wall and adapted to seat upon all said walls, and means for supporting said cover in adjusted positions; substantially as described.

3. In an oil-burner or the like, a central stock having an opening therein, spider-arms extending from said stock, an oil-receptacle having a wall connected to said arms, a supporting-post movable in said opening, a cover supported upon said post, apinion supported upon said burner and meshing with a rack upon said supporting-post, and a spring upon said stock and bearing upon the side of said post opposite said pinion for forcing said post upon said pinion; substantially as described.

In testimony whereof I hereunto affix my signature, in the presence of two witnesses, this 23d day of September, 1902.

THOMAS E. FLAHERTY.

Witnesses:

GALns P. Moons, GEORGE BAKEWELL. 

